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Starvard University · Woodworking
Learn the classic hand joints from William Fairham's Woodwork Joints: butt, halving, mortise and tenon, and dovetail. Eight short lessons take you from reading grain to gluing up a small box or step stool of your own.
Hello, my name is Finn, and I'm going to help you understand this course.
Here it is, explained like you are 10:
Woodworking is joining pieces of wood so they stay together without wobbling, the way good furniture has been made for hundreds of years. In this course you learn to use a saw, a plane, and sharp chisels safely, to draw exact lines before you cut, and to make the strong corners called joints. You start with simple joints anyone can cut, work up to the famous dovetail, and finish by gluing up a real little box or step stool you made yourself, start to finish.
Think of a joint as a handshake between two pieces of wood. A weak handshake slips apart. A good joint locks the pieces together with shape, not just glue, so a chair or box can be lifted, sat on, and used for years. This course teaches the handshakes in order, from the plain butt joint to the halving joint, the mortise and tenon, and the dovetail that fans out like a dove's tail and refuses to pull apart.
Everything here comes from real workshop practice in William Fairham's Woodwork Joints, first published for working joiners. You will learn the old rules that still work: mark from the face side, cut on the waste side, test with winding laths, and dry fit before glue ever touches wood. By the last lesson you are not just reading about joints. You have cut them, fitted them, and built something solid enough to keep. Small, true, and finished beats big and wobbly every single time in this craft.
The whole course in brief
Eight lessons, eight skills your hands will keep.
The eight lessons
Lesson 1
Start with a small, honest kit. Fairham's butt joint chapter names the jack plane for roughing, the wooden trying plane (or iron jointing plane) for trueing, the try square for testing, plus winding laths and a straight edge. Add a tenon saw, a set of bevel edge chisels, a mallet, a marking gauge, and a bench vice, and you can make every joint in this course.
Wood is not plastic. Grain runs lengthwise, and boards shrink across it. Mark one flat surface the face side and one straight edge the face edge, and take every measurement from those two faces. Sight along two winding laths laid across a board: if their top edges do not line up, the board is in winding and needs planing first. Quartered timber, with grain running straight, stays flattest.
Safety is habit, not luck. Clamp work in the vice instead of holding it, keep both hands behind a chisel edge, cut away from your body, and keep tools sharp, because a dull edge slips and needs dangerous force.
Lesson 2
Good joints are drawn before they are cut. Use a marking knife, not a fat pencil line, for lines you will saw or chisel to: the knife severs cross fibres and gives the saw a clean start. Run the try square from the face edge, hold the marking gauge stock tight against the face side, and set the gauge once, then use it on both mating pieces so small errors match instead of adding up.
Work this order on every cut:
For thin boards of 1/4 inch to 5/8 inch, Fairham recommends a shooting board and plane to true the edge. Alternate boards face up, then face down as you shoot them, so any tiny error in the board cancels out instead of building a curved panel.
Lesson 3
The butt joint, which Fairham also calls the glued or rubbed joint, is two planed faces glued edge to edge. Warm both faces, spread hot glue about the consistency of cream, rub the pieces back and forth to squeeze out the surplus, and leave them supported flat along their whole width. A well fitted butt joint in pine can be stronger than the wood beside it, but it has no mechanical lock, so it suits tabletops and panels, not chair legs.
The halved joint adds that lock. Each piece loses exactly half its depth where they cross, so the two sit flush. Fairham's family includes the halved corner joint for frame corners, the halved T joint where a rail meets an upright, and the cross halving joint where each piece runs through the other.
Mark the half depth with the gauge set to half the thickness, saw the shoulders to the line, chisel out the waste in shallow layers, and test often. Glue and screw inside work; for outdoor work Fairham advises paint or varnish and white lead in the joint, with nails or screws.
Lesson 4
The mortise and tenon is the frame joint of doors, tables, and gates: a tongue (the tenon) fits a slot (the mortise). A sound beginner rule is to make the tenon about one third the thickness of the stock, so neither the tenon nor the mortise cheeks are left too weak. Set a mortise gauge to that width, gauge both pieces from the face side, and knife the shoulder lines round the rail.
Saw the tenon cheeks on the waste side, then saw the shoulders. Chop the mortise with a mortise chisel, working from both faces toward the middle so you do not blow out the back, and lever waste out a little at a time. Fairham shows a strip of gummed paper stuck on the chisel as a quick depth gauge.
At the end of a door stile, use a haunched tenon: the short haunch fills its haunching and stops the frame lipping out of flush. Leave a horn of extra stile length while you cramp and wedge, then saw it off last. Dry fit first: the tenon should push home with firm hand pressure and mallet taps, not hammer blows.
Lesson 5
A dovetail locks because its tails fan out like a dove's tail, wider at the end than at the root, so the joint resists being pulled apart. Through dovetails, used on boxes and carcase work, show end grain on both faces. Lap dovetails hide the joint inside a lap of about 1/4 inch, which is why drawer fronts use them, since no end grain may show at the front.
Slope matters. Fairham gives an inclination of one in eight as correct for dovetails, and never less than one in six: steeper tails lock harder but leave fragile short grain, while shallower tails can slip. Make a simple template or set a bevel to that slope and use it for every tail.
Square and true the stock first, or the finished box will be in winding. Gauge the baseline with a cutting gauge, incising about 1/32 inch so cross fibres are cut cleanly. Mark the tails, saw on the waste side down to the gauge line, chisel out the waste between them, then use the finished tails to mark the pins on the mating board. Pare and test: a good dovetail closes with hand pressure and a few mallet taps, no gap at the shoulder.
Lesson 6
Dowelling joins boards with round wooden pegs. Fairham specifies straight grained beech dowels, bought in lengths of about 36 inches or driven through a steel dowel plate to size them. Cut a small groove along each dowel: it lets trapped air and surplus glue escape so the joint does not split, and it holds extra glue against the hole wall.
For jointed tops and ends, space dowels 9 to 10 inches apart, with two near each end, and make them about 7/8 inch to 1 1/4 inches long. Shoot the board edges true, clamp face sides together, square the dowel lines across both edges at once, gauge from the face side, prick each centre with a marking awl so the twist bit cannot wander, then bore half the dowel length into each board.
Tongues and grooves do the same aligning job continuously. A plough plane cuts the groove, a tonguing plane (or a loose tongue in two grooves) forms the tongue. A loose cross tongue or feather tongue lets you join thicker boards and cabinet tops, while tongued and grooved matchboarding and 7/8 inch flooring boards use the solid tongue worked on the board itself.
Lesson 7
Glue rewards preparation and punishes hurry. Dry assemble the whole piece first, number the joints, lay out cramps opened to size, and keep a damp rag and a mallet within reach. Fairham's rules still hold: glue should be hot, spread fast, and about the consistency of cream, because glue that penetrates the pores holds best. Warm cold boards so they do not chill the glue on contact, and roughen broad, shiny hardwood faces lightly so the glue can grip.
Cramp evenly, a little at a time on each cramp, and check for square by measuring both diagonals: equal diagonals mean a square frame. Support jointed boards along their full width while the glue sets, as Fairham illustrates, never reared against a wall with the middle unsupported, or they will sag and set crooked. Leave cramps on for one to four hours depending on the weather, longer in a cold shop.
Scrape off squeezed out glue after it turns rubbery, not while it is wet and smearing. Level joints with a finely set plane, refine with a cabinet scraper, then work through sanding grits without skipping. Finish a beginner piece with oil or wax, wiped on thin and buffed, so later repairs stay easy.
Lesson 8
Prove the course with one small, useful build. Choose a lidded box with through dovetails, or a step stool with mortise and tenon or halved rails. Both use pine or another mild, straight grained wood about 3/4 inch thick, which cuts cleanly and forgives small errors. Write a cut list first: every part, its finished length, width, and thickness, plus which joints it carries.
Build in this order:
Test a stool by standing on it on a flat floor: no rock, no creak, no opening shoulder. Test a box by lifting it by one side, full of books. If it holds, you have not just finished a project. You have learned the sequence every larger piece of furniture follows.
Sources
This course is taught from classic texts that are free for anyone to read. Every method in the lessons traces back to one of these books.
Graduation
You started by learning to see a board: its grain, its face side, its winding. You end with a box or a stool that you marked, cut, fitted, glued, and finished yourself, using joints joiners have trusted for centuries. Keep your first piece, date it underneath, and let every wobble in it teach the next one. Sharpen your chisels, keep your gauge settings honest, and build the next thing a little bigger.
Keep learning
This course is part of Starvard University, striving for greatness.
A note on accuracy: Much of what you read at Starvard was created with help from AI agents, working alongside people. We check what we can, but we cannot guarantee that everything here is true, current, or complete. If something really matters, your health, your money, a grade, a job, please verify it with a trusted source before you rely on it.